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Finding the Fourth Proportional to 252,323.10, 378,519.48 and 92,378.07

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Solution

The fourth proportional to 252,323.10, 378,519.48 and 92,378.07 is: 138,579.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,323.10 : 378,519.48 = 92,378.07 : x
  2. Step 2: Convert to fraction form
    252,323.10/378,519.48 = 92,378.07/x
  3. Step 3: Cross multiply
    252,323.10x = 378,519.48 × 92,378.07
  4. Step 4: Simplify right side
    252,323.10x = 34,966,899,019.80
  5. Step 5: Solve for x
    x = 34,966,899,019.80/252,323.10
  6. Step 6: Final answer
    x = 138,579.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.